KISELEV, P. Ya. On the Jakobi series. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 23, n. 3, p. 399–405, 1971. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8570. Acesso em: 6 dec. 2025.